What the vulnerability does
01Description
The kallyas theme for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.21.0 via the 'TH_LatestPosts4` widget. This makes it possible for authenticated attackers, with Contributor-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included.
Explanation of Vulnerability in Simple Terms
02Summary
The KALLYAS WordPress theme contains a vulnerability that allows authenticated users with low privileges to read sensitive data, modify site content, or disrupt service. The flaw requires network access and specific conditions to exploit, but does not require user interaction. All versions up to 4.21.0 are affected.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify site content, or cause the site to become unavailable.
Potential impact on your site
04Site Impact
Any logged-in user with basic permissions could compromise data confidentiality, integrity, or availability.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the WordPress site; network access required.
Key dates
06Disclosure timeline
July 26, 2025
CVE published
April 8, 2026
Record updated
